Light Bulb



FIG. 1 is a perspective view of a lighting fixture showing my design;

FIG. 2 is a front elevational thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The dash-dot-dash broken lines shown represent the bounds of the claimand forms no part thereof and the dashed broken lines shown thereinillustrate portions of the lamp that form no part of the claimed design.

CLAIM The ornamental design for a light bulb, as shown and described.